Search a number
-
+
131033892 = 223111758393
BaseRepresentation
bin1111100111101…
…10101100100100
3100010120012201010
413303312230210
5232021041032
621000302220
73150525003
oct763665444
9303505633
10131033892
1167a68780
1237a71970
13211bb262
141358cc3a
15b784ccc
hex7cf6b24

131033892 has 48 divisors (see below), whose sum is σ = 353166912. Its totient is φ = 37370880.

The previous prime is 131033873. The next prime is 131033897. The reversal of 131033892 is 298330131.

It is not an unprimeable number, because it can be changed into a prime (131033897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26953 + ... + 31440.

It is an arithmetic number, because the mean of its divisors is an integer number (7357644).

Almost surely, 2131033892 is an apocalyptic number.

131033892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131033892 is an abundant number, since it is smaller than the sum of its proper divisors (222133020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131033892 is a wasteful number, since it uses less digits than its factorization.

131033892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58428 (or 58426 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 131033892 is about 11447.0036254035. The cubic root of 131033892 is about 507.9191027897.

The spelling of 131033892 in words is "one hundred thirty-one million, thirty-three thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 17 22 33 34 44 51 66 68 102 132 187 204 374 561 748 1122 2244 58393 116786 175179 233572 350358 642323 700716 992681 1284646 1926969 1985362 2569292 2978043 3853938 3970724 5956086 7707876 10919491 11912172 21838982 32758473 43677964 65516946 131033892